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  34. <div class="title">TBB concepts </div> </div>
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  37. <div class="textblock"><p>A concept is a set of requirements to a type, which are necessary and sufficient for the type to model a particular behavior or a set of behaviors. Some concepts are specific to a particular algorithm (e.g. algorithm body), while other ones are common to several algorithms (e.g. range concept).</p>
  38. <p>All TBB algorithms make use of different classes implementing various concepts. Implementation classes are supplied by the user as type arguments of template parameters and/or as objects passed as function call arguments. The library provides predefined implementations of some concepts (e.g. several kinds of <a class="el" href="a00001.html">ranges</a>), while other ones must always be implemented by the user.</p>
  39. <p>TBB defines a set of minimal requirements each concept must conform to. Here is the list of different concepts hyperlinked to the corresponding requirements specifications:</p>
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  41. <li><a class="el" href="a00001.html">Requirements on range concept</a></li>
  42. <li><a class="el" href="a00002.html">Requirements on parallel_do body</a></li>
  43. <li><a class="el" href="a00003.html">Requirements on parallel_for body</a></li>
  44. <li><a class="el" href="a00004.html">Requirements on parallel_reduce body</a></li>
  45. <li><a class="el" href="a00006.html">Requirements on parallel_scan body</a></li>
  46. <li><a class="el" href="a00007.html">Requirements on iterators for parallel_sort</a> </li>
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